I. Put a √ if the following mixtures can be separated using magnet and put X if not. 1. Paper clip and paper. 2. Dust and pin 3. Powder milk and hot water 4. Nails and pebbles 5. Water and sand 6. Flour and salt 7. powder and staple wire 8. Oil and water 9. Ink and water 10. Pepper and vinegar